CN218032949U

CN218032949U - Vehicle lamp

Info

Publication number: CN218032949U
Application number: CN202221742268.9U
Authority: CN
Inventors: 石家声; 陈国平
Original assignee: Guangzhou Optical Technology Co ltd
Current assignee: Guangzhou Optical Technology Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-12-13
Anticipated expiration: 2032-07-05

Abstract

The utility model relates to a car lamp, include: the device comprises a low-beam light source, a high-beam light source and a light-emitting lens arranged on a common light path of the low-beam light source and the high-beam light source; the light-emitting lens comprises a lens substrate, a high beam lens and a low beam lens, wherein the high beam lens and the low beam lens are arranged on the lens substrate, the range of the ratio of the projection areas of the high beam lens to the projection areas of the low beam lens on the lens substrate is 0.3-1, and one side of the high beam lens, which is far away from the low beam lens, is arranged in a plane; the dipped beam lens is used for emitting dipped beams, the high beam lens is used for emitting high beams, the size of the lens substrate is L multiplied by M, L is not less than 4cm and not more than 6cm, M is not less than 3cm and not more than 5cm. The utility model discloses a car light passing lens can rationally set up according to actual conditions the distance light lens with the light collection efficiency of passing light and distance light has been guaranteed to the structure of passing light lens, guarantees the light-emitting effect, and light-emitting lens size is little, and car light compact structure is applicable to integrated matrix car light.

Description

Vehicle lamp

Technical Field

The utility model relates to the field of optical technology, more specifically relates to a car light.

Background

The traditional car light is mostly LED light source, and the shortcoming of LED light source is that illuminance is not high, and the distance light effect is not good. When the driver drives at night, especially under the condition of complex road conditions, the driver is often helped to widen the visual field by the high beam, the driving safety is ensured, but the problem of insufficient brightness exists in the conventional LED high beam light source. The laser light source has the characteristics of high response speed, low brightness attenuation, small volume, low energy consumption, long service life and the like, and compared with an LED light source, the laser light source has higher illumination brightness and longer irradiation distance. However, after the laser light source is added to the existing vehicle lamp as the high beam light source, the high beam performance of the laser light source cannot be fully utilized, so that the problem that the high beam brightness of the vehicle lamp is insufficient still exists, and therefore, a vehicle lamp with higher high beam brightness is required. In addition, the types of automobile headlights on the market are very many, and the lens headlights cannot be adapted to the types of flat structure headlights, so that a headlight with high adaptability is required.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned prior art's at least one defect (not enough), provide a car light for solve present car light distance luminance not enough and the limited problem of suitability, the car light-emitting is effectual, and small in size, and compact structure is applicable to integrated matrix automobile lamp, the multiple motorcycle type of adaptation.

The utility model adopts the following technical scheme:

a vehicle lamp, comprising: the device comprises a low-beam light source, a high-beam light source and a light-emitting lens arranged on a common light path of the low-beam light source and the high-beam light source; the light-emitting lens comprises a lens substrate, a high beam lens and a low beam lens, wherein the high beam lens and the low beam lens are arranged on the lens substrate, the range of the ratio of the projection areas of the high beam lens to the projection areas of the low beam lens on the lens substrate is 0.3-1, and one side of the high beam lens, which is far away from the low beam lens, is arranged in a plane; the dipped beam lens is used for emitting dipped beams, the high beam lens is used for emitting high beams, the size of the lens substrate is L multiplied by M, L is not less than 4cm and not more than 6cm, M is not less than 3cm and not more than 5cm.

In one embodiment, the low beam lens and the high beam lens are connected, and the low beam lens is arranged in a plane on one side close to the high beam lens.

In one embodiment, the high beam light source comprises a laser, a collimating lens module, a focusing lens module, a diffusion sheet and a fluorescent powder sheet which are arranged in sequence; the collimating lens module is used for collimating laser emitted by the laser, and the focusing lens module is used for focusing the collimated laser to enable the laser to be focused on the fluorescent powder sheet; the diffusion sheet is used for homogenizing laser spots.

In one embodiment, the high beam light source further includes a laser module housing for integrating the laser, the collimating lens module and the focusing lens module, and an upper housing for mounting the diffusion sheet and the phosphor sheet.

In one embodiment, the upper housing comprises a mounting groove for mounting the diffusion sheet and a pressing sheet for pressing the diffusion sheet; and/or the upper shell comprises a fixed seat provided with an open slot, the open slot is used for accommodating the fluorescent powder sheet, and the upper shell further comprises a protective sheet used for covering the open slot.

In one embodiment, the protective sheet is a glass sheet.

In one embodiment, the laser is arranged above the low-beam light source and on one side of the low-beam light source away from the light-emitting lens, or the laser is arranged on one side of the low-beam light source away from the light-emitting lens.

In one embodiment, the high beam light source includes a laser, a focusing lens module for focusing laser, a fiber optic cable for transmitting laser, and a phosphor patch for converting laser at least partially into stimulated light, which are sequentially disposed.

In one embodiment, the high beam light source includes a high beam chip, phosphor disposed on a light emitting surface of the high beam chip, and a high beam reflector for collecting light emitted from the high beam chip.

In one embodiment, the vehicular lamp further comprises a low-beam light shielding sheet, and the low-beam light shielding sheet is arranged on a focal plane of the low-beam lens.

In one embodiment, the vehicle lamp further comprises a heat dissipation structure connected with the low beam light source and/or the high beam light source.

Compared with the prior art, the beneficial effects of the utility model include at least:

this technical scheme's car light both includes the passing light source, includes the high beam light source again, can compromise the passing light high beam, and through setting up light-emitting lens into passing light part and high beam part, passing light lens are used for the emergence passing light, and high beam lens is used for the emergence high beam, sets up rationally according to actual conditions far beam lens with passing light lens is in the scope of the projection area ratio on the lens base plate is kept away from between 0.3-1 and high beam lens passing light lens one side is the plane setting, has guaranteed the light collection efficiency of passing light and high beam, and the high beam performance of make full use of high beam light source guarantees the light-emitting effect, and further controls the size of car light, and compact structure is small and exquisite, is applicable to integrated matrix car lamp, the multiple motorcycle type of adaptable.

Drawings

Fig. 1 is an explosion diagram of a vehicle lamp according to embodiment 1 of the present invention.

Fig. 2 is a schematic partial exploded view of fig. 1.

FIG. 3 is a schematic structural view of the upper housing of FIG. 1;

fig. 4 is an explosion diagram of the vehicle lamp according to embodiment 2 of the present invention.

Fig. 5 is an explosion diagram of the vehicle lamp according to embodiment 3 of the present invention.

Reference numerals: 10. a low beam light source; 11. an LED chip; 12. a near-light reflecting cup; 20. a high beam light source; 21. a laser; 22. a collimating lens module; 23. a focusing lens module; 24. a diffusion sheet; 25. a phosphor sheet; 26. a laser module housing; 27. an upper housing; 271. mounting grooves; 272. tabletting; 273. a fixed seat; 274. a protective sheet; 28. an optical fiber wire; 291. a high beam chip; 292. a spherical reflective cup; 30. a light-emitting lens; 31. a lens substrate; 32. a high beam lens; 33. a low beam lens; 40. a heat dissipation structure; 41. a heat-dissipating substrate; 42. a heat dissipation fan.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For the purpose of better illustrating the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

A vehicular lamp as shown in fig. 1 to 3, comprising: a low beam light source 10, a high beam light source 20, and a light exit lens 30 provided on a common optical path of the low beam light source 10 and the high beam light source 20; the light-emitting lens 30 comprises a lens substrate 31, and a high beam lens 32 and a low beam lens 33 which are arranged on the lens substrate 31, wherein the ratio of the projection areas of the high beam lens 32 and the low beam lens 33 on the lens substrate 31 ranges from 0.3 to 1, and the high beam lens 32 is arranged in a plane on the side away from the low beam lens 33; the dipped beam lens 33 is used for emitting dipped beams, the high beam lens 32 is used for emitting high beams, the size of the lens substrate is L multiplied by M, L is not less than 4cm and not more than 6cm, and M is not less than 3cm and not more than 5cm.

The car light of this embodiment both includes low beam light source 10, includes high beam light source 20 again, can compromise low beam high beam, and through setting up light-emitting lens 30 to low beam part and high beam part, low beam lens 33 is used for the outgoing low beam, and high beam lens 32 is used for the outgoing high beam, sets up rationally according to actual conditions high beam lens 32 with low beam lens 33 is in the scope of the ratio of projection area on lens base plate 31 is between 0.3-1, has guaranteed the light collection efficiency of low beam and high beam, and make full use of high beam light source 20's high beam performance guarantees the light-emitting effect, and because high beam lens 32 keeps away from low beam lens 33 one side is the plane setting, and high beam light source 20 locates low beam light source 10 top, and high beam lens 32's top surface is the plane promptly, accomplishes the encapsulation back when the car light, and the upper surface of whole car light is planar structure, and the lens base plate size is very little, and the car light not only can be very small, in practical application, can also be with a plurality the car light constitutes the matrix arrangement in the position of car light.

Specifically, the low-beam light source 10 according to the present embodiment includes an LED chip 11 and a low-beam reflector cup 12 provided above the LED chip 11. The high beam light source 20 is disposed above the low beam light source 10.

The low beam lens 33 of the present embodiment is connected to the high beam lens 32, and the low beam lens 33 is provided in a flat surface shape on the side closer to the high beam lens 32. That is, the upper surface of the low beam lens 33 is also designed to be a plane, so as to prevent the high beam from being blocked by the convex part due to the upward projection of the upper surface of the low beam lens 33, which affects the light emitting effect.

Further, the low beam lens 33, the high beam lens 32, and the lens substrate 31 of the present embodiment are integrally molded.

Moreover, since the LED chip 11 of the low beam light source 10 is reflected by the low beam reflector 12 and then emitted from the low beam lens 33, and the reflected light is downward, the lower surface of the low beam lens 33 is still a downward convex curved surface, so that all the low beams can be emitted after being received by the low beam lens 33.

The high beam light source 20 of the present embodiment includes a laser 21, a collimating lens module 22, a focusing lens module 23, a diffusion sheet 24, and a phosphor sheet 25, which are sequentially disposed; the collimating lens module 22 is configured to collimate laser light emitted by the laser 21, and the focusing lens module 23 is configured to focus the collimated laser light so that the laser light is focused on the phosphor sheet 25; the diffuser 24 is used to homogenize the laser spots and avoid burning the powder.

Specifically, the collimating lens module 22 includes a collimating lens sleeve and a collimating lens mounted in the collimating lens sleeve; the focusing lens module 23 includes a focusing lens sleeve and a focusing lens mounted in the focusing lens sleeve. The alignable straight lens and the focusing lens serve as positioning and protection.

The high beam light source 20 of the present embodiment further includes a laser module housing 26 for integrating the laser 21, the collimating lens module 22 and the focusing lens module 23, and an upper housing 27 for mounting the diffusion sheet 24 and the phosphor sheet 25. The collimating lens sleeve and the focusing lens sleeve are both mounted within the laser module housing 26. The diffusion sheet 24 and the fluorescent powder sheet 25 are both arranged on the upper shell 27, the upper shell 27 comprises a mounting groove 271 for mounting the diffusion sheet 24 and a pressing sheet 272 for pressing the diffusion sheet 24, and after the diffusion sheet 24 is mounted, the pressing sheet 272 is pressed in the mounting groove 271 to prevent falling off; go up casing 27 including the fixing base 273 that is equipped with the open slot, the open slot is used for the holding phosphor powder piece 25, just go up casing 27 still including being used for covering the screening glass 274 of open slot avoids phosphor powder piece 25 to expose and leads to phosphor powder piece 25 wearing and tearing.

Specifically, the protection sheet 274 is a glass sheet made of a transparent material, so that the fluorescent powder sheet 25 is not exposed, and the light emitting of the high beam is not affected, thereby ensuring the illumination of the light.

The vehicular lamp of the present embodiment further includes a low-beam shade (not shown) provided on the focal plane of the low-beam lens 33. The low-beam light-shielding sheet can be used for performing light-shielding cutting on light emitted by the low-beam light source 10 to obtain a low-beam light type with clear cut-off lines.

This embodiment the car light still includes heat radiation structure 40, heat radiation structure 40 with passing light source 10 with distance light source 20 all connects, improves the radiating efficiency, prolongs the life of car light. In other embodiments, the heat dissipation structure 40 may be connected to one of the low beam light source 10 or the high beam light source 20. Specifically, the heat dissipation structure 40 includes a heat dissipation substrate 41, the heat dissipation substrate 41, and a heat dissipation fan 42 disposed on the heat dissipation substrate 41. The heat dissipation substrate 41 is disposed in an L-shape, i.e. two substrates perpendicular to each other can be used for heat conduction of the low beam light source 10 and the high beam light source 20, respectively.

Specifically, the laser 21 is disposed above the low-beam light source 10 on the side of the low-beam light source 10 away from the exit lens 30. By such design, the laser 21 is close to the rear of the vehicle lamp, i.e. the laser 21 is close to the heat dissipation fan 42 of the vehicle lamp, and the heat dissipation effect of the high beam light source is better.

In other embodiments, the laser 21 may also be located on a side of the low-beam light source 10 away from the light-emitting lens 30, for example, the laser 21 may be located at the same level as the low-beam light source 10, and the laser emitted from the laser 21 is also guided to the phosphor sheet by additionally arranging a reflective element.

Example 2

As shown in fig. 4, the present embodiment is similar to the structure and principle of embodiment 1, except that the high beam light source 20 of the present embodiment includes a laser 21, a focusing lens module 23 for focusing laser light, a fiber optic cable 28 for guiding laser light, and a phosphor patch 25 for at least partially converting laser light into stimulated light. In the embodiment, the optical fiber wire 28 is used as a light transmission piece for transmitting laser light, and the light is not required to be controlled and guided by a plurality of lenses, reflecting prisms and the like, so that the assembly difficulty is reduced, and the assembly error is reduced, thereby ensuring the light transmission effect; meanwhile, the optical fiber wire 28 occupies a small space, the position, the shape and the path of the optical fiber wire 28 can be set according to actual conditions, the requirement on assembly space is low, the structure of the car lamp is compact, the internal space of the car lamp shell is reasonably utilized, and the overall structure of the car lamp is reduced.

Example 3

As shown in fig. 5, the present embodiment is similar to the embodiments 1 and 2 in structure and principle, and is different in that the high beam light source 20 of the present embodiment includes a high beam chip 291, phosphor powder disposed on a light emitting surface of the high beam chip 291, and a spherical reflector 292 for collecting light emitted from the high beam chip 291. Specifically, the high beam chip 291 is an LED chip, and a light emitting surface of the high beam chip 291 is perpendicular to a light emitting surface of the LED chip 11 of the low beam light source 10, that is, the light emitting surface of the low beam light source 10 emits light upwards, and the light emitting surface of the high beam light source 20 emits light to the left, and the light is transmitted to the high beam lens 32 through the spherical reflector 292 to be emitted. By making the light emitting surfaces perpendicular to each other, the low beam light and the high beam light do not interfere with each other and are emitted through the low beam lens 33 and the high beam lens 32, respectively.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle lamp, characterized by comprising: the device comprises a low-beam light source, a high-beam light source and a light-emitting lens arranged on a common light path of the low-beam light source and the high-beam light source; the light-emitting lens comprises a lens substrate, a high beam lens and a low beam lens, wherein the high beam lens and the low beam lens are arranged on the lens substrate, the ratio of the projection areas of the high beam lens and the low beam lens on the lens substrate ranges from 0.3 to 1, and one side of the high beam lens, which is far away from the low beam lens, is arranged in a plane; the dipped beam lens is used for emitting dipped beams, the high beam lens is used for emitting high beams, the size of the lens substrate is L multiplied by M, L is not less than 4cm and not more than 6cm, M is not less than 3cm and not more than 5cm.

2. The vehicular lamp according to claim 1, wherein the low beam lens and the high beam lens are connected, and the low beam lens is disposed in a plane on a side close to the high beam lens.

3. The vehicle lamp according to claim 1, wherein the high beam light source comprises a laser, a collimating lens module, a focusing lens module, a diffusion sheet and a phosphor sheet arranged in sequence; the collimating lens module is used for collimating laser emitted by the laser, and the focusing lens module is used for focusing the collimated laser to enable the laser to be focused on the fluorescent powder sheet; the diffusion sheet is used for homogenizing laser spots.

4. The vehicular lamp according to claim 3, wherein the high beam light source further comprises a laser module housing for integrating the laser, the collimator lens module, and the focus lens module, and an upper housing for mounting the diffusion sheet and the phosphor sheet.

5. The vehicular lamp according to claim 4, wherein the upper housing includes a mounting groove for mounting a diffusion sheet and a pressing sheet for pressing the diffusion sheet; and/or the upper shell comprises a fixed seat provided with an open slot, the open slot is used for accommodating the fluorescent powder sheet, and the upper shell further comprises a protective sheet used for covering the open slot.

6. The vehicle lamp according to claim 1, wherein the high beam light source comprises a laser, a focusing lens module for focusing the laser, a fiber optic cable for transmitting the laser, and a phosphor patch for converting the laser at least partially into the stimulated light, which are arranged in sequence.

7. The vehicular lamp according to any one of claims 3 to 6, wherein the laser is disposed above the low-beam light source on a side of the low-beam light source away from the light-emitting lens, or the laser is disposed on a side of the low-beam light source away from the light-emitting lens.

8. The vehicular lamp according to claim 1, wherein the high beam light source comprises a high beam chip, a phosphor disposed on a light emitting surface of the high beam chip, and a spherical reflector cup for collecting light emitted from the high beam chip.

9. The vehicular lamp according to any one of claims 1 to 6 and 8, characterized in that the vehicular lamp further comprises a low-beam shade provided on a focal plane of the low-beam lens.

10. Vehicle light according to any one of claims 1 to 6 and 8, characterized in that the vehicle light further comprises a heat dissipation structure connected with the low beam light source and/or the high beam light source.